Clonal dissemination of Klebsiella pneumoniae ST512 carrying blaKPC-3 in a hospital in southern Italy.

Autor: Pulcrano G; Department of Cellular and Molecular Biology and Pathology 'Luigi Califano', Medicine School, University of Naples 'Federico II', Naples, Italy., Iula DV, de Luca C, Roscetto E, Vollaro A, Rossano F, Catania MR
Jazyk: angličtina
Zdroj: APMIS : acta pathologica, microbiologica, et immunologica Scandinavica [APMIS] 2014 Jan; Vol. 122 (1), pp. 42-6. Date of Electronic Publication: 2013 May 08.
DOI: 10.1111/apm.12097
Abstrakt: Strains of Klebsiella pneumoniae producing KPC-carbapenemase have emerged as one of the most important multidrug-resistant Gram-negative nosocomial pathogens. Here, we report the first isolation and subsequent dissemination of a K. pneumoniae ST512 producing KPC-3 carbapenemase in a hospital in southern Italy. Isolates were obtained from blood, throat swabs, sputum, catheters, and urine of patients admitted to different hospital wards. Antimicrobial MICs were determined for all isolates by automated systems and confirmed by Etest. Carbapenemase production was confirmed by the modified Hodge test and by a disc synergy test, and carbapenemase genes were investigated by PCR. All isolates were characterized by pulse-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) analysis. Most isolates were multidrug resistant with exception of some isolates intermediately susceptible to gentamicin, tigecycline, and trimethoprim-sulfamethoxazole. PCR analysis showed that isolates harbored the bla(KPC-3) gene associated with bla(TEM) and bla(SVH). PFGE and MLST showed that all isolates belonged to the same ST512 clone recently described in Israel.
(© 2013 APMIS Published by Blackwell Publishing Ltd.)
Databáze: MEDLINE
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